Author Question: Each entity type in an ER Diagram becomes an attribute. Indicate whether the statement is true or ... (Read 58 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
Each entity type in an ER Diagram becomes an attribute.
 
  Indicate whether the statement is true or false

Question 2

Referential integrity specifies that the value of an attribute of one relation depends on the existence of the same attribute in another relation.
 
  Indicate whether the statement is true or false



fromAlphatoOmega22

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

FALSE
Explanation: Each entity type in an ER Diagram becomes a relation, not an attribute.
CL

Answer to Question 2

TRUE
Explanation: For instance, you can't have StudentID in STUDENT_CLASS unless StudentID already exists in STUDENT.
CL



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

For a complete list of videos, visit our video library